✦ LIBER ✦

Visual evoked potentials in acute occipital blindness

✍ Scribed by Ch. W. Hess; O. Meienberg; H. P. Ludin

Publisher: Springer
Year: 1982
Tongue: English
Weight: 781 KB
Volume: 227
Category: Article
ISSN: 0340-5354
DOI: 10.1007/bf00313386

No coin nor oath required. For personal study only.

✦ Synopsis

Pattern-evoked and flash-evoked responses were recorded from four patients with acute blindness due to occipital ischaemia. No responses could be obtained with pattern stimulation. Flash stimulation, however, yielded well-reproducible potentials in all four cases in spite of practically complete visual loss. In one patient vision recovered completely while the three others showed poor or minimal recovery in restricted visual field areas only. It is concluded that the flash method is not appropriate for differentiation of occipital blindness from psychogenic visual disorders. Furthermore, preserved flash-evoked potentials in the acute stage of occipital blindness cannot be taken as a reliable prognostic sign for visual recovery, as has been postulated by others. A possible extrastriate origin of these flash responses is discussed in view of recent theories on a second visual system.

📜 SIMILAR VOLUMES

Visual evoked retinal and occipital pote

Visual evoked retinal and occipital potentials

✍ Richard M. Copenhaver; Gilbert D. Beinhocker; Nathan W. Perry 📂 Article 📅 1964 🏛 Springer-Verlag 🌐 English ⚖ 412 KB

## With 4 figures The recording of evoked occipital potentials in response to small flickering light sources located at various points in the visual field and demonstrating detection of the blindspot has previously been reported by COPENHAVER & BEINIIOCKER (1963). ARMINGTON, TEPAS, KROPFL & HENGS

Visual evoked potentials in the evaluati

Visual evoked potentials in the evaluation of “cortical blindness” in children

✍ Dr Yitzchak Frank; Fernando Torres 📂 Article 📅 1979 🏛 John Wiley and Sons 🌐 English ⚖ 394 KB 👁 2 views

## Abstract Visual evoked responses (VERs) to brief light flashes were recorded from occipital regions in a group of 30 “cortically blind” children aged 4 months to 15 years and were compared with those of 31 children of similar age range who had the same type of central nervous system diseases but

Visual evoked potentials in tumors from

Visual evoked potentials in tumors from orbita to occipital lobe in childhood

✍ Dieter Wenzel; Ulrich Brandl; Jörn-Dirk Beck; Cornelia Cedzich; Fritz Albert 📂 Article 📅 1988 🏛 Springer-Verlag 🌐 English ⚖ 581 KB

Visual evoked potentials and postmortem

Visual evoked potentials and postmortem findings in a case of cortical blindness

✍ Dr. Rainer Spehlmann; Robert A. Gross; Sam U. Ho; Jan E. Leestma; Karyl A. Norcr 📂 Article 📅 1977 🏛 John Wiley and Sons 🌐 English ⚖ 337 KB 👁 2 views

Visual evoked potentials in ataxia telan

Visual evoked potentials in ataxia telangiectasia

✍ R. Sridharan; B. C. Mehta 📂 Article 📅 1985 🏛 Springer 🌐 English ⚖ 262 KB

Visual evoked potentials in macular hole

✍ Masaru Kato; Tetsusi Nakagami; Ikuo Watanabe 📂 Article 📅 1991 🏛 Springer-Verlag 🌐 English ⚖ 369 KB

Pattern reversal visual evoked potentials (VEPs) with checks of 50' and 12' were recorded in 15 patients with idiopathic unilateral macular hole. VEPs from the affected eyes were reduced in amplitude compared with those from the fellow eyes, especially with checks of 12' (percentage of the amplitude